(GIZMODO) – Fossils are cool and during an expedition earlier this year in Antarctica, scientists from the University of Queensland scientists collected a whole ton of them, some dating back to the Cretaceous era.

The team of 12 scientists reported the discovery of fossils on James Ross Island near the Antarctic Peninsula, which included a mix of marine and dinosaur fossils, dating back at least 71 million years.

“We did find a lot of marine reptile remains, so things like plesiosaurs and mosasaurs,” said Dr. Steve Salisbury of the University of Queensland, in a press release. “The rocks that we were focusing on come from the end of the Age of Dinosaurs, so most of them are between 71 million and 67 million years old.”

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